Česky
English
Committee for collaboration of Czech Republic

with Joint Institute for Nuclear Research in Dubna Login
Multiparticle correlations and higher order harmonics in pPb collisions at root s(NN)=8.16 TeV

Author
Sirunyan A.M. Yerevan Physics Institute, Armenia
Finger Miroslav, prof. Ing. DrSc. Faculty of Mathematics and Physics, Charles University in Prague
Finger Michael, M.Sc. CSc. Faculty of Mathematics and Physics, Charles University in Prague, JINR Dubna
Korenkov V. JINR
et al.  different institutions

Year
2019

Scientific journal
NUCLEAR PHYSICS A 982 375-378

Web


Abstract
The elliptic and higher-order azimuthal anisotropy Fourier harmonics (v(n)) are obtained for pPb collisions at root s(NN) = 8.16 TeV over a wide range of event multiplicities based on multiparticle correlations. The data were collected by the CMS experiment during the 2016 LHC run. A sample of peripheral PbPb collisions at root s(NN) = 5.02 TeV covering a similar range of event multiplicities to the pPb results is also analyzed for comparison. The ratios of different harmonic moments are obtained for both v(2) and v(3) with high precision, which allows a direct comparison to theoretical predictions assuming a hydrodynamic evolution of the created medium with initial-state density fluctuations, particularly probing the non-Gaussian nature of initial-state fluctuations in small collision systems. The presented results provide crucial insights into the origin of collective long-range correlations observed in small collision systems.

Cite article as:
A. Sirunyan, M. Finger, M. Finger, V. Korenkov, . et al., "Multiparticle correlations and higher order harmonics in pPb collisions at root s(NN)=8.16 TeV ", NUCLEAR PHYSICS A 982 375-378 (2019)